def forLoopWithRange(node, varID, indexes, symbolTable, scope):
Step = 1
if node.getSon(4).getName() == "STEP":
Step = node.getSon(5).getName()
lowerLimit = int(indexes[0][0])
upperLimit = int(indexes[0][2])
if lowerLimit < upperLimit:
if node.getSon(4).getName() == "STEP":
Step = node.getSon(5).getName()
totalCycles = upperLimit-lowerLimit
if Step == 1:
for cycle in range(lowerLimit, upperLimit):
tempSymbol = symbolTable.getSymbolByScope(varID, scope)
tempSymbol.setValue(cycle)
symbolTable.modifySymbol(tempSymbol)
tempStatementList = node.getSon(5)
statementList(tempStatementList, symbolTable, scope)
symbolTable.eliminateSymbolByScope(varID, scope)
else:
cycle = lowerLimit
while cycle < upperLimit:
tempSymbol = symbolTable.getSymbolByScope(varID, scope)
tempSymbol.setValue(cycle)
symbolTable.modifySymbol(tempSymbol)
tempStatementList = node.getSon(7)
statementList(tempStatementList, symbolTable, scope)
cycle += Step
symbolTable.eliminateSymbolByScope(varID, scope)
else:
logError("Semantic: UpperLimit " + str(upperLimit) + " doesn't match LowerLimit " + str(lowerLimit))
def ifStatementBoolean(node, comparable, value, operator, symbolTable, scope):
if operator == "==":
if comparable == value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == "!=":
if comparable != value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
else:
logError(operator + ": Operator not supported in variable " + str(type(value)))
def forLoop(node, symbolTable, scope):
if isReadyForRun():
varID = node.getSon(1).getName()
iterable = node.getSon(3).getSon(0).getName()
symbolTable.simpleAdd(varID, 0, Types.Integer, scope)
isRange = False
if not isinstance(iterable, int):
iterableValueLength = 0
if iterable == "indexedId":
tempNode = node.getSon(3).getSon(0)
tempListSymbol = symbolTable.getSymbolByScope(tempNode.getSon(0).getName(), scope)
if tempListSymbol == None:
tempListSymbol = symbolTable.getSymbolByScope(tempNode.getSon(0).getName(), "global")
tempList = tempListSymbol.getValue()
indexes = getIndexes(tempNode.getSon(1), [], symbolTable, scope)
for value in indexes:
if not isinstance(value, int):
if value[1] == ':':
isRange = True
forLoopWithRange(node, varID, indexes, symbolTable, scope)
break
else:
break
if not isRange:
iterableValueLength = len(getListElementByIndex(tempList, indexes))
elif iterable == "len":
tempID = node.getSon(3).getSon(0).getSon(0).getName()
iterableValue = symbolTable.getSymbolByScope(tempID, scope)
if iterableValue == None:
logError("Semantic: Variable " + str(tempID) + " was not found")
iterableValueLength = len(iterableValue.getValue())
else:
iterableValue = symbolTable.getSymbolByScope(iterable, scope)
if iterableValue == None:
iterableValue = symbolTable.getSymbolByScope(node.getSon(3).getSon(0).getName(), "global")
if isinstance(iterableValue.getValue(), int):
iterableValueLength = iterableValue.getValue()
else:
iterableValueLength = len(iterableValue.getValue())
if not isRange:
Step = 1
if node.getSon(4).getName() == "STEP":
Step = node.getSon(5).getName()
totalCycles = iterableValueLength
if Step == 1:
for cycle in range(totalCycles):
tempSymbol = symbolTable.getSymbolByScope(varID, scope)
tempSymbol.setValue(cycle)
symbolTable.modifySymbol(tempSymbol)
tempStatementList = node.getSon(5)
statementList(tempStatementList, symbolTable, scope)
symbolTable.eliminateSymbolByScope(varID, scope)
else:
cycle = 0
while cycle < totalCycles:
tempSymbol = symbolTable.getSymbolByScope(varID, scope)
tempSymbol.setValue(cycle)
symbolTable.modifySymbol(tempSymbol)
tempStatementList = node.getSon(7)
statementList(tempStatementList, symbolTable, scope)
cycle += Step
symbolTable.eliminateSymbolByScope(varID, scope)
else:
for cycle in range(iterable):
tempSymbol = symbolTable.getSymbolByScope(varID, scope)
tempSymbol.setValue(cycle)
symbolTable.modifySymbol(tempSymbol)
tempStatementList = node.getSon(5)
statementList(tempStatementList, symbolTable, scope)
symbolTable.eliminateSymbolByScope(varID, scope)
def ifStatementInteger(node, comparable, value, operator, symbolTable, scope):
if operator == "==":
if comparable.getValue() == value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == '<':
if comparable.getValue() < value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == ">":
if comparable.getValue() > value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == "<=":
if comparable.getValue() <= value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == ">=":
if comparable.getValue() >= value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
elif operator == "!=":
if comparable.getValue() != value:
statementList(node.getSon(5), symbolTable, scope)
else:
pass
else:
logError("Value type not supported")